/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box; }

html {
  margin-top: 0 !important; }

.under-mv {
  padding: 36rem 0 7rem;
  background: url("../img/research/under-fv.jpg") no-repeat center center;
  background-size: cover; }
  @media screen and (max-width: 834px) {
    .under-mv {
      padding: 16rem 0px 5rem; } }

.under-mv__title-box {
  color: #fff; }
  .under-mv__title-box .under-mv__title {
    color: #fff;
    line-height: 1.1; }
  .under-mv__title-box .under-mv__title--en {
    line-height: 1.1; }

.under-mv__title--sub {
  font-size: 24px;
  font-weight: 400;
  line-height: 1.3; }
  @media screen and (max-width: 834px) {
    .under-mv__title--sub {
      font-size: 18px; } }

.under-research__sec-lead {
  font-size: 16px;
  font-weight: 400;
  line-height: 1;
  margin-bottom: 2.5rem;
  color: #559F40; }
  @media screen and (max-width: 834px) {
    .under-research__sec-lead {
      font-size: 14px;
      margin-bottom: 1.3rem; } }
.under-research__sec-title {
  width: 100%;
  font-size: 42px;
  font-weight: 400; }
  @media screen and (max-width: 834px) {
    .under-research__sec-title {
      font-size: 25px;
      white-space: normal;
      line-height: 1.5; } }
.under-research__lead {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 11rem 0 14rem; }
  @media screen and (max-width: 834px) {
    .under-research__lead {
      padding: 6rem 0;
      flex-direction: column;
      gap: 3rem 0; } }
  .under-research__lead .under-research__sec-title {
    width: 45%;
    font-size: 32px; }
    @media screen and (max-width: 834px) {
      .under-research__lead .under-research__sec-title {
        font-size: 25px;
        width: 100%; } }
  .under-research__lead .under-research__sec-text {
    width: 59%; }
    @media screen and (max-width: 834px) {
      .under-research__lead .under-research__sec-text {
        width: 100%; } }
.under-research__mark {
  background: url("../img/research/development-bg.webp") no-repeat center center;
  background-size: cover;
  padding: 13rem 0; }
  @media screen and (max-width: 834px) {
    .under-research__mark {
      padding: 6rem 0; } }
.under-research .mark__title-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-direction: column; }
  .under-research .mark__title-box .under-research__sec-lead {
    color: #9ECE91; }
  .under-research .mark__title-box .under-research__sec-title {
    text-align: center;
    font-weight: 400;
    line-height: 1.5;
    margin-bottom: 3.5rem;
    color: #fff; }
    @media screen and (max-width: 834px) {
      .under-research .mark__title-box .under-research__sec-title {
        font-size: 22px;
        margin-bottom: 0; } }
.under-research .mark__list {
  margin-top: 6rem;
  display: flex;
  flex-direction: column;
  gap: 2rem 0; }
.under-research .mark__item {
  background-color: rgba(255, 255, 255, 0.25);
  padding: 6rem 10%;
  display: flex;
  align-items: center; }
  @media screen and (max-width: 834px) {
    .under-research .mark__item {
      flex-direction: column;
      padding: 3rem 10%;
      gap: 1rem 0; } }
  .under-research .mark__item .item-title {
    width: 30%;
    font-size: 40px;
    font-family: "Red Hat Display", sans-serif;
    font-weight: 400; }
    @media screen and (max-width: 834px) {
      .under-research .mark__item .item-title {
        width: 100%;
        font-size: 28px; } }
  .under-research .mark__item .white {
    color: #fff; }
  .under-research .mark__item .red {
    color: #CB4444; }
  .under-research .mark__item .blue {
    color: #305270; }
  .under-research .mark__item .green {
    color: #2B522F; }
  .under-research .mark__item .gray {
    color: #C0C0C0; }
  .under-research .mark__item .item-text {
    width: 70%;
    font-size: 24px;
    font-weight: 400;
    color: #fff; }
    @media screen and (max-width: 834px) {
      .under-research .mark__item .item-text {
        width: 100%;
        font-size: 18px; } }
    .under-research .mark__item .item-text span {
      font-size: 16px;
      font-weight: 400;
      display: block; }
      @media screen and (max-width: 834px) {
        .under-research .mark__item .item-text span {
          font-size: 13px; } }
.under-research__technic {
  background: url("../img/research/development-bg2.webp") no-repeat center center;
  background-size: cover;
  padding: 10rem 0 8rem;
  position: relative; }
  @media screen and (max-width: 834px) {
    .under-research__technic {
      padding: 6rem 0; } }
.under-research .technic__upper-box {
  display: flex;
  justify-content: space-between;
  align-items: center; }
  @media screen and (max-width: 834px) {
    .under-research .technic__upper-box {
      flex-direction: column-reverse;
      gap: 3rem; } }
.under-research .technic__picture-box {
  width: 44%; }
  @media screen and (max-width: 834px) {
    .under-research .technic__picture-box {
      width: 100%; } }
.under-research .technic__text-box {
  width: 48%; }
  @media screen and (max-width: 834px) {
    .under-research .technic__text-box {
      width: 100%; } }
  .under-research .technic__text-box .under-research__sec-title {
    margin-bottom: 4rem;
    font-size: 32px; }
    @media screen and (max-width: 834px) {
      .under-research .technic__text-box .under-research__sec-title {
        margin-bottom: 2rem;
        font-size: 23px; } }
    .under-research .technic__text-box .under-research__sec-title span {
      font-size: 24px;
      display: block; }
      @media screen and (max-width: 834px) {
        .under-research .technic__text-box .under-research__sec-title span {
          font-size: 18px; } }
  .under-research .technic__text-box .under-research__sec-text {
    width: 100%; }
.under-research .technic__loop {
  bottom: 2rem;
  position: absolute;
  width: 100%;
  overflow: hidden;
  z-index: 1;
  white-space: nowrap; }
  @media screen and (max-width: 834px) {
    .under-research .technic__loop {
      bottom: 1rem; } }
  .under-research .technic__loop .swiper-wrapper {
    transition-timing-function: linear; }
  .under-research .technic__loop .swiper-slide {
    width: fit-content;
    height: inherit;
    object-fit: cover;
    position: relative;
    cursor: pointer;
    display: inline-block;
    isolation: isolate; }
  .under-research .technic__loop .loop-slide {
    pointer-events: none;
    position: relative;
    z-index: 1;
    display: inline-block;
    flex-shrink: 0;
    opacity: 1;
    padding-right: 5px;
    width: 1500px;
    max-width: unset;
    width: fit-content;
    margin-right: 5rem;
    font-size: clamp(60px, 5vw, 80px);
    font-stretch: semi-expanded;
    letter-spacing: 0.025em;
    font-family: "Red Hat Display", sans-serif;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.5); }
    @media screen and (max-width: 834px) {
      .under-research .technic__loop .loop-slide {
        max-width: 600px;
        font-size: 40px; } }
.under-research__case {
  padding: 14rem 0 8rem; }
  @media screen and (max-width: 834px) {
    .under-research__case {
      padding: 6rem 0; } }
.under-research .under-research__case--item .inner {
  display: flex;
  justify-content: space-between;
  align-items: center; }
  @media screen and (max-width: 834px) {
    .under-research .under-research__case--item .inner {
      flex-direction: column;
      gap: 3rem 0; } }
.under-research .under-research__case--item1 {
  padding-bottom: 8rem;
  margin-bottom: 8rem;
  border-bottom: 1px solid #D9D9D9; }
  @media screen and (max-width: 834px) {
    .under-research .under-research__case--item1 {
      padding-bottom: 4rem;
      margin-bottom: 4rem; } }
.under-research .cese__text-box {
  width: 43%; }
  @media screen and (max-width: 834px) {
    .under-research .cese__text-box {
      width: 100%; } }
  .under-research .cese__text-box .cese__lead {
    color: #559F40;
    margin-bottom: 1rem; }
    @media screen and (max-width: 834px) {
      .under-research .cese__text-box .cese__lead {
        margin-bottom: 0.5rem; } }
  .under-research .cese__text-box .cese__title {
    font-size: 24px;
    margin-bottom: 2rem;
    font-weight: 400; }
    @media screen and (max-width: 834px) {
      .under-research .cese__text-box .cese__title {
        font-size: 18px; } }
.under-research .case__picture-box {
  width: 49%; }
  @media screen and (max-width: 834px) {
    .under-research .case__picture-box {
      width: 100%; } }